Dampening-bath for press-copying



(NoMdeh) f NQG. sTILEs.

nAMENl-NG-BATH FOR EHESS COPYING.;

Patented' June' 27,1 1882.

UNITED STAT-Es PATENT OFFICE.

NORMAN C. STILES, 0F MIDDLETOWN, CONNECTICUT.

DAMPENING-BATH FOR PRESS-COPYING.

SPECIFICATION forming part of Letters Patent No. 260,251, dated June 27,1882,

Application f iled November 9, 1881. (No model.)

To all whom it may concern Be it known that I, NORMAN C. STILI-1s, ofMiddletown, in the county of Middlesex and State of Connecticut, haveinvented anew Improvement in Dampening-Baths for Press- Copying; and Ido hereby declare the following, when taken in connection with theaccompanying drawings, and the letters of reference marked thereon, tobe a full, clear, and exact description ofthe same, and which saiddrawings constitute part of this specification, and represent, in YFigure 1, an end view; Fig. 2, a rear view; Fig. 3, a transversesection.

This invention relates toa device to facilitate the dampening ot' paperfor copying written documents. Various devices are resorted to for thispurpose, the-one most generally used being to wet the paper direct-ly,either with a brush or sponge, and then absorb the lsurplus water beforecopying. Other devices,

however, have been used for this purpose-as, for instance, wetting acloth, and then laying that cloth on one side of the copying-paper,while the document to be copied is upon the opposite side. Then pressureis applied. The dampness from the cloth penetrates the paper andproduces the copy; but in this latter method a serious difficulty isexperienced, owing to the impossibility o f an even wetting of thecloth,`except it be passed through a wringer. In some cases a commonwringer has been used for this purpose, but it is inconvenient andcumbersome.

The object of this invention is the construction of a wetting-bath witha wringer combined therewith, so that the cloths to be used for copyingmay be conveniently wet, then squeezed or wruu g 5 and the inventionconsists essentially in a tank to contain the water in which the clothsare to be wet., with a wrin ger attached thereto and made a partthereof, as more fully hereinafter described.

A represents the tank, which is made of cast metal,and preferabl ysquare or'box-shaped, ot a size to contain sufficient water and thecloths which are to be wet.

B B are two common india-rubber wringerrolls each arranged in suitablebearings, the shaft C of the lower roll extending outward, and providedwith a crank, B', by which the rolls may be turned. The upper roll ishung at each end in an arm, D, of a spring,.which gives the requisitepressure to the roll. The rolls are best attached by making the bearingsfor the rolls,one in the end of one arm, D, and the other in the endofthe arm E of a U- shaped spring, the lower arm, E,being secured to alug on the side of the tank, as at Fig. 3. The tank is Iitted withprojecting ears b at the bottom, by which it may be secured in position,and is fitted with a cock, F, by which the wateranaybe drawn off whenoccasion requires.

H is a cover in size corresponding to the top of the tank, and hinged inrear of the rolls, as at d, and constructed to extend up over the rolls,so as to not only cover the rolls but cover the tank entire when closed,as seen in Figs. l and 3. This cover swings backward from the rolls andforms in the rear a receiver for the cloths which run through betweenthe rolls-a great convenience, not to say necessitv.

In caseoi' the construction of the spring as shown, it will be necessaryto make openings e through the rear of the cover, as seen in Fig. 2, andalso to provide the end of the cover with a slot, f, to pass down overthe crankshaft, as seen in Fig. 1. In this device I make an articlecompletely ready for use in which cloths may be wet, squeezed, anddelivered into a receiver, from which they may be taken moistened in themost perfect manner and ready for use.

Otherarran gementofthe rolls maybe madethat is, so far as the method ofapplying pressure thereto is concernedit only being essential to thisinvention that there shall be a pair of rolls arranged in connectionwith or as a part of the tank, whereby the cloths may be readily takenfrom the tank, delivered to the rolls, the surplus water falling backintothe tank and the cloths passing from the rolls outside the tank.

From the foregoing it will be understood that I do not broadly claim theemployment of the pressure-rolls as a means for squeezing or wringingcloths for copying purposes; but

What I do claim is- The tank A, combined with the rolls B B, arrangeduponone edge of the tank, and the crank B for imparting rotary movementthereto, with the cover H, arranged in rear of the rolls, and so as toserve both as a cover to the box and receiver for the cloths,substantially as described.

Witnesses: NORMAN C. STILES.

SAMUEL L. WARNER, J. A. PELTON.

IOO

